Your unhappiness doesn't help anyone else - and in fact, as I mentioned in another answer, happy people are more altruistically inclined. So happiness is not a selfish goal.

Contemporary research shows that happy people are more altruistic, more productive, more helpful, more likable, more creative, more resilient, more interested in others, friendlier, and healthier. Happy people make better friends, colleagues, and citizens.

The belief that unhappiness is selfless and happiness is selfish is misguided. It's more selfless to act happy. It takes energy, generosity, and discipline to be unfailingly lighthearted.

I always had the uncomfortable feeling that if I wasn't sitting in front of a computer typing, I was wasting my time - but I pushed myself to take a wider view of what was "productive." Time spent with my family and friends was never wasted.

I'm doing a lot of speaking and talking about habits, which is this subject that obsesses me. That's a lot of fun.

One of the great joys of falling in love is the feeling that the most extraordinary person in the entire world has chosen you.

There's a kind of magical thinking about these kinds of things. Throw away those bad photos before the "magic" attaches to them, so the good ones stand out.